1 files changed, 732 insertions, 172 deletions

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index e0039dfae8e5..fa2cb3582cfa 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -91,11 +91,14 @@ static unsigned int ipr_max_speed = 1;
 static int ipr_testmode = 0;
 static unsigned int ipr_fastfail = 0;
 static unsigned int ipr_transop_timeout = IPR_OPERATIONAL_TIMEOUT;
+static unsigned int ipr_enable_cache = 1;
+static unsigned int ipr_debug = 0;
+static int ipr_auto_create = 1;
 static DEFINE_SPINLOCK(ipr_driver_lock);
 
 /* This table describes the differences between DMA controller chips */
 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
-        { /* Gemstone and Citrine */
+        { /* Gemstone, Citrine, and Obsidian */
                 .mailbox = 0x0042C,
                 .cache_line_size = 0x20,
                 {
@@ -130,6 +133,8 @@ static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
 static const struct ipr_chip_t ipr_chip[] = {
         { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] },
         { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
+        { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] },
+        { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] },
         { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] },
         { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] }
 };
@@ -150,6 +155,12 @@ module_param_named(fastfail, ipr_fastfail, int, 0);
 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
+module_param_named(enable_cache, ipr_enable_cache, int, 0);
+MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)");
+module_param_named(debug, ipr_debug, int, 0);
+MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
+module_param_named(auto_create, ipr_auto_create, int, 0);
+MODULE_PARM_DESC(auto_create, "Auto-create single device RAID 0 arrays when initialized (default: 1)");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(IPR_DRIVER_VERSION);
 
@@ -285,12 +296,18 @@ struct ipr_error_table_t ipr_error_table[] = {
         "3110: Device bus error, message or command phase"},
         {0x04670400, 0, 1,
         "9091: Incorrect hardware configuration change has been detected"},
+        {0x04678000, 0, 1,
+        "9073: Invalid multi-adapter configuration"},
         {0x046E0000, 0, 1,
         "FFF4: Command to logical unit failed"},
         {0x05240000, 1, 0,
         "Illegal request, invalid request type or request packet"},
         {0x05250000, 0, 0,
         "Illegal request, invalid resource handle"},
+        {0x05258000, 0, 0,
+        "Illegal request, commands not allowed to this device"},
+        {0x05258100, 0, 0,
+        "Illegal request, command not allowed to a secondary adapter"},
         {0x05260000, 0, 0,
         "Illegal request, invalid field in parameter list"},
         {0x05260100, 0, 0,
@@ -299,6 +316,8 @@ struct ipr_error_table_t ipr_error_table[] = {
         "Illegal request, parameter value invalid"},
         {0x052C0000, 0, 0,
         "Illegal request, command sequence error"},
+        {0x052C8000, 1, 0,
+        "Illegal request, dual adapter support not enabled"},
         {0x06040500, 0, 1,
         "9031: Array protection temporarily suspended, protection resuming"},
         {0x06040600, 0, 1,
@@ -315,18 +334,26 @@ struct ipr_error_table_t ipr_error_table[] = {
         "3029: A device replacement has occurred"},
         {0x064C8000, 0, 1,
         "9051: IOA cache data exists for a missing or failed device"},
+        {0x064C8100, 0, 1,
+        "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
         {0x06670100, 0, 1,
         "9025: Disk unit is not supported at its physical location"},
         {0x06670600, 0, 1,
         "3020: IOA detected a SCSI bus configuration error"},
         {0x06678000, 0, 1,
         "3150: SCSI bus configuration error"},
+        {0x06678100, 0, 1,
+        "9074: Asymmetric advanced function disk configuration"},
         {0x06690200, 0, 1,
         "9041: Array protection temporarily suspended"},
         {0x06698200, 0, 1,
         "9042: Corrupt array parity detected on specified device"},
         {0x066B0200, 0, 1,
         "9030: Array no longer protected due to missing or failed disk unit"},
+        {0x066B8000, 0, 1,
+        "9071: Link operational transition"},
+        {0x066B8100, 0, 1,
+        "9072: Link not operational transition"},
         {0x066B8200, 0, 1,
         "9032: Array exposed but still protected"},
         {0x07270000, 0, 0,
@@ -789,7 +816,7 @@ static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
  **/
 static void ipr_init_res_entry(struct ipr_resource_entry *res)
 {
-        res->needs_sync_complete = 1;
+        res->needs_sync_complete = 0;
         res->in_erp = 0;
         res->add_to_ml = 0;
         res->del_from_ml = 0;
@@ -889,29 +916,74 @@ static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
 
 /**
  * ipr_log_vpd - Log the passed VPD to the error log.
- * @vpids:                      vendor/product id struct
- * @serial_num:         serial number string
+ * @vpd:                vendor/product id/sn struct
  *
  * Return value:
  *      none
  **/
-static void ipr_log_vpd(struct ipr_std_inq_vpids *vpids, u8 *serial_num)
+static void ipr_log_vpd(struct ipr_vpd *vpd)
 {
         char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
                     + IPR_SERIAL_NUM_LEN];
 
-        memcpy(buffer, vpids->vendor_id, IPR_VENDOR_ID_LEN);
-        memcpy(buffer + IPR_VENDOR_ID_LEN, vpids->product_id,
+        memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
+        memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
                IPR_PROD_ID_LEN);
         buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
         ipr_err("Vendor/Product ID: %s\n", buffer);
 
-        memcpy(buffer, serial_num, IPR_SERIAL_NUM_LEN);
+        memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
         buffer[IPR_SERIAL_NUM_LEN] = '\0';
         ipr_err("    Serial Number: %s\n", buffer);
 }
 
 /**
+ * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
+ * @vpd:                vendor/product id/sn/wwn struct
+ *
+ * Return value:
+ *      none
+ **/
+static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
+{
+        ipr_log_vpd(&vpd->vpd);
+        ipr_err("    WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
+                be32_to_cpu(vpd->wwid[1]));
+}
+
+/**
+ * ipr_log_enhanced_cache_error - Log a cache error.
+ * @ioa_cfg:    ioa config struct
+ * @hostrcb:    hostrcb struct
+ *
+ * Return value:
+ *      none
+ **/
+static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
+                                         struct ipr_hostrcb *hostrcb)
+{
+        struct ipr_hostrcb_type_12_error *error =
+                &hostrcb->hcam.u.error.u.type_12_error;
+
+        ipr_err("-----Current Configuration-----\n");
+        ipr_err("Cache Directory Card Information:\n");
+        ipr_log_ext_vpd(&error->ioa_vpd);
+        ipr_err("Adapter Card Information:\n");
+        ipr_log_ext_vpd(&error->cfc_vpd);
+
+        ipr_err("-----Expected Configuration-----\n");
+        ipr_err("Cache Directory Card Information:\n");
+        ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
+        ipr_err("Adapter Card Information:\n");
+        ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
+
+        ipr_err("Additional IOA Data: %08X %08X %08X\n",
+                     be32_to_cpu(error->ioa_data[0]),
+                     be32_to_cpu(error->ioa_data[1]),
+                     be32_to_cpu(error->ioa_data[2]));
+}
+
+/**
  * ipr_log_cache_error - Log a cache error.
  * @ioa_cfg:    ioa config struct
  * @hostrcb:    hostrcb struct
@@ -927,17 +999,15 @@ static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
 
         ipr_err("-----Current Configuration-----\n");
         ipr_err("Cache Directory Card Information:\n");
-        ipr_log_vpd(&error->ioa_vpids, error->ioa_sn);
+        ipr_log_vpd(&error->ioa_vpd);
         ipr_err("Adapter Card Information:\n");
-        ipr_log_vpd(&error->cfc_vpids, error->cfc_sn);
+        ipr_log_vpd(&error->cfc_vpd);
 
         ipr_err("-----Expected Configuration-----\n");
         ipr_err("Cache Directory Card Information:\n");
-        ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpids,
-                    error->ioa_last_attached_to_cfc_sn);
+        ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
         ipr_err("Adapter Card Information:\n");
-        ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpids,
-                    error->cfc_last_attached_to_ioa_sn);
+        ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
 
         ipr_err("Additional IOA Data: %08X %08X %08X\n",
                      be32_to_cpu(error->ioa_data[0]),
@@ -946,6 +1016,46 @@ static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
 }
 
 /**
+ * ipr_log_enhanced_config_error - Log a configuration error.
+ * @ioa_cfg:    ioa config struct
+ * @hostrcb:    hostrcb struct
+ *
+ * Return value:
+ *      none
+ **/
+static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
+                                          struct ipr_hostrcb *hostrcb)
+{
+        int errors_logged, i;
+        struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
+        struct ipr_hostrcb_type_13_error *error;
+
+        error = &hostrcb->hcam.u.error.u.type_13_error;
+        errors_logged = be32_to_cpu(error->errors_logged);
+
+        ipr_err("Device Errors Detected/Logged: %d/%d\n",
+                be32_to_cpu(error->errors_detected), errors_logged);
+
+        dev_entry = error->dev;
+
+        for (i = 0; i < errors_logged; i++, dev_entry++) {
+                ipr_err_separator;
+
+                ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
+                ipr_log_ext_vpd(&dev_entry->vpd);
+
+                ipr_err("-----New Device Information-----\n");
+                ipr_log_ext_vpd(&dev_entry->new_vpd);
+
+                ipr_err("Cache Directory Card Information:\n");
+                ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
+
+                ipr_err("Adapter Card Information:\n");
+                ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
+        }
+}
+
+/**
  * ipr_log_config_error - Log a configuration error.
  * @ioa_cfg:    ioa config struct
  * @hostrcb:    hostrcb struct
@@ -966,30 +1076,22 @@ static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
         ipr_err("Device Errors Detected/Logged: %d/%d\n",
                 be32_to_cpu(error->errors_detected), errors_logged);
 
-        dev_entry = error->dev_entry;
+        dev_entry = error->dev;
 
         for (i = 0; i < errors_logged; i++, dev_entry++) {
                 ipr_err_separator;
 
-                if (dev_entry->dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
-                        ipr_err("Device %d: missing\n", i + 1);
-                } else {
-                        ipr_err("Device %d: %d:%d:%d:%d\n", i + 1,
-                                ioa_cfg->host->host_no, dev_entry->dev_res_addr.bus,
-                                dev_entry->dev_res_addr.target, dev_entry->dev_res_addr.lun);
-                }
-                ipr_log_vpd(&dev_entry->dev_vpids, dev_entry->dev_sn);
+                ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
+                ipr_log_vpd(&dev_entry->vpd);
 
                 ipr_err("-----New Device Information-----\n");
-                ipr_log_vpd(&dev_entry->new_dev_vpids, dev_entry->new_dev_sn);
+                ipr_log_vpd(&dev_entry->new_vpd);
 
                 ipr_err("Cache Directory Card Information:\n");
-                ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpids,
-                            dev_entry->ioa_last_with_dev_sn);
+                ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
 
                 ipr_err("Adapter Card Information:\n");
-                ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpids,
-                            dev_entry->cfc_last_with_dev_sn);
+                ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
 
                 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
                         be32_to_cpu(dev_entry->ioa_data[0]),
@@ -1001,6 +1103,57 @@ static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
 }
 
 /**
+ * ipr_log_enhanced_array_error - Log an array configuration error.
+ * @ioa_cfg:    ioa config struct
+ * @hostrcb:    hostrcb struct
+ *
+ * Return value:
+ *      none
+ **/
+static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
+                                         struct ipr_hostrcb *hostrcb)
+{
+        int i, num_entries;
+        struct ipr_hostrcb_type_14_error *error;
+        struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
+        const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
+
+        error = &hostrcb->hcam.u.error.u.type_14_error;
+
+        ipr_err_separator;
+
+        ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
+                error->protection_level,
+                ioa_cfg->host->host_no,
+                error->last_func_vset_res_addr.bus,
+                error->last_func_vset_res_addr.target,
+                error->last_func_vset_res_addr.lun);
+
+        ipr_err_separator;
+
+        array_entry = error->array_member;
+        num_entries = min_t(u32, be32_to_cpu(error->num_entries),
+                            sizeof(error->array_member));
+
+        for (i = 0; i < num_entries; i++, array_entry++) {
+                if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
+                        continue;
+
+                if (be32_to_cpu(error->exposed_mode_adn) == i)
+                        ipr_err("Exposed Array Member %d:\n", i);
+                else
+                        ipr_err("Array Member %d:\n", i);
+
+                ipr_log_ext_vpd(&array_entry->vpd);
+                ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
+                ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
+                                 "Expected Location");
+
+                ipr_err_separator;
+        }
+}
+
+/**
  * ipr_log_array_error - Log an array configuration error.
  * @ioa_cfg:    ioa config struct
  * @hostrcb:    hostrcb struct
@@ -1032,36 +1185,19 @@ static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
         array_entry = error->array_member;
 
         for (i = 0; i < 18; i++) {
-                if (!memcmp(array_entry->serial_num, zero_sn, IPR_SERIAL_NUM_LEN))
+                if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
                         continue;
 
-                if (be32_to_cpu(error->exposed_mode_adn) == i) {
+                if (be32_to_cpu(error->exposed_mode_adn) == i)
                         ipr_err("Exposed Array Member %d:\n", i);
-                } else {
+                else
                         ipr_err("Array Member %d:\n", i);
-                }
 
-                ipr_log_vpd(&array_entry->vpids, array_entry->serial_num);
-
-                if (array_entry->dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
-                        ipr_err("Current Location: unknown\n");
-                } else {
-                        ipr_err("Current Location: %d:%d:%d:%d\n",
-                                ioa_cfg->host->host_no,
-                                array_entry->dev_res_addr.bus,
-                                array_entry->dev_res_addr.target,
-                                array_entry->dev_res_addr.lun);
-                }
+                ipr_log_vpd(&array_entry->vpd);
 
-                if (array_entry->expected_dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
-                        ipr_err("Expected Location: unknown\n");
-                } else {
-                        ipr_err("Expected Location: %d:%d:%d:%d\n",
-                                ioa_cfg->host->host_no,
-                                array_entry->expected_dev_res_addr.bus,
-                                array_entry->expected_dev_res_addr.target,
-                                array_entry->expected_dev_res_addr.lun);
-                }
+                ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
+                ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
+                                 "Expected Location");
 
                 ipr_err_separator;
 
@@ -1073,35 +1209,95 @@ static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
 }
 
 /**
- * ipr_log_generic_error - Log an adapter error.
- * @ioa_cfg:    ioa config struct
- * @hostrcb:    hostrcb struct
+ * ipr_log_hex_data - Log additional hex IOA error data.
+ * @data:               IOA error data
+ * @len:                data length
  *
  * Return value:
  *      none
  **/
-static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
-                                  struct ipr_hostrcb *hostrcb)
+static void ipr_log_hex_data(u32 *data, int len)
 {
         int i;
-        int ioa_data_len = be32_to_cpu(hostrcb->hcam.length);
 
-        if (ioa_data_len == 0)
+        if (len == 0)
                 return;
 
-        ipr_err("IOA Error Data:\n");
-        ipr_err("Offset    0 1 2 3  4 5 6 7  8 9 A B  C D E F\n");
-
-        for (i = 0; i < ioa_data_len / 4; i += 4) {
+        for (i = 0; i < len / 4; i += 4) {
                 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
-                        be32_to_cpu(hostrcb->hcam.u.raw.data[i]),
-                        be32_to_cpu(hostrcb->hcam.u.raw.data[i+1]),
-                        be32_to_cpu(hostrcb->hcam.u.raw.data[i+2]),
-                        be32_to_cpu(hostrcb->hcam.u.raw.data[i+3]));
+                        be32_to_cpu(data[i]),
+                        be32_to_cpu(data[i+1]),
+                        be32_to_cpu(data[i+2]),
+                        be32_to_cpu(data[i+3]));
         }
 }
 
 /**
+ * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
+ * @ioa_cfg:    ioa config struct
+ * @hostrcb:    hostrcb struct
+ *
+ * Return value:
+ *      none
+ **/
+static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
+                                            struct ipr_hostrcb *hostrcb)
+{
+        struct ipr_hostrcb_type_17_error *error;
+
+        error = &hostrcb->hcam.u.error.u.type_17_error;
+        error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
+
+        ipr_err("%s\n", error->failure_reason);
+        ipr_err("Remote Adapter VPD:\n");
+        ipr_log_ext_vpd(&error->vpd);
+        ipr_log_hex_data(error->data,
+                         be32_to_cpu(hostrcb->hcam.length) -
+                         (offsetof(struct ipr_hostrcb_error, u) +
+                          offsetof(struct ipr_hostrcb_type_17_error, data)));
+}
+
+/**
+ * ipr_log_dual_ioa_error - Log a dual adapter error.
+ * @ioa_cfg:    ioa config struct
+ * @hostrcb:    hostrcb struct
+ *
+ * Return value:
+ *      none
+ **/
+static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
+                                   struct ipr_hostrcb *hostrcb)
+{
+        struct ipr_hostrcb_type_07_error *error;
+
+        error = &hostrcb->hcam.u.error.u.type_07_error;
+        error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
+
+        ipr_err("%s\n", error->failure_reason);
+        ipr_err("Remote Adapter VPD:\n");
+        ipr_log_vpd(&error->vpd);
+        ipr_log_hex_data(error->data,
+                         be32_to_cpu(hostrcb->hcam.length) -
+                         (offsetof(struct ipr_hostrcb_error, u) +
+                          offsetof(struct ipr_hostrcb_type_07_error, data)));
+}
+
+/**
+ * ipr_log_generic_error - Log an adapter error.
+ * @ioa_cfg:    ioa config struct
+ * @hostrcb:    hostrcb struct
+ *
+ * Return value:
+ *      none
+ **/
+static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
+                                  struct ipr_hostrcb *hostrcb)
+{
+        ipr_log_hex_data(hostrcb->hcam.u.raw.data,
+                         be32_to_cpu(hostrcb->hcam.length));
+}
+
+/**
  * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
  * @ioasc:      IOASC
  *
@@ -1172,11 +1368,10 @@ static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
 
         if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
                 return;
+        if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
+                hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
 
         switch (hostrcb->hcam.overlay_id) {
-        case IPR_HOST_RCB_OVERLAY_ID_1:
-                ipr_log_generic_error(ioa_cfg, hostrcb);
-                break;
         case IPR_HOST_RCB_OVERLAY_ID_2:
                 ipr_log_cache_error(ioa_cfg, hostrcb);
                 break;
@@ -1187,13 +1382,26 @@ static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
         case IPR_HOST_RCB_OVERLAY_ID_6:
                 ipr_log_array_error(ioa_cfg, hostrcb);
                 break;
-        case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
-                ipr_log_generic_error(ioa_cfg, hostrcb);
+        case IPR_HOST_RCB_OVERLAY_ID_7:
+                ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
+                break;
+        case IPR_HOST_RCB_OVERLAY_ID_12:
+                ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
+                break;
+        case IPR_HOST_RCB_OVERLAY_ID_13:
+                ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
+                break;
+        case IPR_HOST_RCB_OVERLAY_ID_14:
+        case IPR_HOST_RCB_OVERLAY_ID_16:
+                ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
                 break;
+        case IPR_HOST_RCB_OVERLAY_ID_17:
+                ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
+                break;
+        case IPR_HOST_RCB_OVERLAY_ID_1:
+        case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
         default:
-                dev_err(&ioa_cfg->pdev->dev,
-                        "Unknown error received. Overlay ID: %d\n",
-                        hostrcb->hcam.overlay_id);
+                ipr_log_generic_error(ioa_cfg, hostrcb);
                 break;
         }
 }
@@ -1972,6 +2180,103 @@ static struct bin_attribute ipr_trace_attr = {
 };
 #endif
 
+static const struct {
+        enum ipr_cache_state state;
+        char *name;
+} cache_state [] = {
+        { CACHE_NONE, "none" },
+        { CACHE_DISABLED, "disabled" },
+        { CACHE_ENABLED, "enabled" }
+};
+
+/**
+ * ipr_show_write_caching - Show the write caching attribute
+ * @class_dev:  class device struct
+ * @buf:                buffer
+ *
+ * Return value:
+ *      number of bytes printed to buffer
+ **/
+static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf)
+{
+        struct Scsi_Host *shost = class_to_shost(class_dev);
+        struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+        unsigned long lock_flags = 0;
+        int i, len = 0;
+
+        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+        for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
+                if (cache_state[i].state == ioa_cfg->cache_state) {
+                        len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
+                        break;
+                }
+        }
+        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+        return len;
+}
+
+
+/**
+ * ipr_store_write_caching - Enable/disable adapter write cache
+ * @class_dev:  class_device struct
+ * @buf:                buffer
+ * @count:              buffer size
+ *
+ * This function will enable/disable adapter write cache.
+ *
+ * Return value:
+ *      count on success / other on failure
+ **/
+static ssize_t ipr_store_write_caching(struct class_device *class_dev,
+                                        const char *buf, size_t count)
+{
+        struct Scsi_Host *shost = class_to_shost(class_dev);
+        struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+        unsigned long lock_flags = 0;
+        enum ipr_cache_state new_state = CACHE_INVALID;
+        int i;
+
+        if (!capable(CAP_SYS_ADMIN))
+                return -EACCES;
+        if (ioa_cfg->cache_state == CACHE_NONE)
+                return -EINVAL;
+
+        for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
+                if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
+                        new_state = cache_state[i].state;
+                        break;
+                }
+        }
+
+        if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
+                return -EINVAL;
+
+        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+        if (ioa_cfg->cache_state == new_state) {
+                spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+                return count;
+        }
+
+        ioa_cfg->cache_state = new_state;
+        dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
+                 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
+        if (!ioa_cfg->in_reset_reload)
+                ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+        wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+        return count;
+}
+
+static struct class_device_attribute ipr_ioa_cache_attr = {
+        .attr = {
+                .name =         "write_cache",
+                .mode =         S_IRUGO | S_IWUSR,
+        },
+        .show = ipr_show_write_caching,
+        .store = ipr_store_write_caching
+};
+
 /**
  * ipr_show_fw_version - Show the firmware version
  * @class_dev:  class device struct
@@ -2112,6 +2417,74 @@ static struct class_device_attribute ipr_diagnostics_attr = {
 };
 
 /**
+ * ipr_show_adapter_state - Show the adapter's state
+ * @class_dev:  class device struct
+ * @buf:                buffer
+ *
+ * Return value:
+ *      number of bytes printed to buffer
+ **/
+static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf)
+{
+        struct Scsi_Host *shost = class_to_shost(class_dev);
+        struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+        unsigned long lock_flags = 0;
+        int len;
+
+        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+        if (ioa_cfg->ioa_is_dead)
+                len = snprintf(buf, PAGE_SIZE, "offline\n");
+        else
+                len = snprintf(buf, PAGE_SIZE, "online\n");
+        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+        return len;
+}
+
+/**
+ * ipr_store_adapter_state - Change adapter state
+ * @class_dev:  class_device struct
+ * @buf:                buffer
+ * @count:              buffer size
+ *
+ * This function will change the adapter's state.
+ *
+ * Return value:
+ *      count on success / other on failure
+ **/
+static ssize_t ipr_store_adapter_state(struct class_device *class_dev,
+                                       const char *buf, size_t count)
+{
+        struct Scsi_Host *shost = class_to_shost(class_dev);
+        struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+        unsigned long lock_flags;
+        int result = count;
+
+        if (!capable(CAP_SYS_ADMIN))
+                return -EACCES;
+
+        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+        if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
+                ioa_cfg->ioa_is_dead = 0;
+                ioa_cfg->reset_retries = 0;
+                ioa_cfg->in_ioa_bringdown = 0;
+                ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+        }
+        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+        wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+        return result;
+}
+
+static struct class_device_attribute ipr_ioa_state_attr = {
+        .attr = {
+                .name =         "state",
+                .mode =         S_IRUGO | S_IWUSR,
+        },
+        .show = ipr_show_adapter_state,
+        .store = ipr_store_adapter_state
+};
+
+/**
  * ipr_store_reset_adapter - Reset the adapter
  * @class_dev:  class_device struct
  * @buf:                buffer
@@ -2183,7 +2556,7 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
                 num_elem = buf_len / bsize_elem;
 
         /* Allocate a scatter/gather list for the DMA */
-        sglist = kmalloc(sizeof(struct ipr_sglist) +
+        sglist = kzalloc(sizeof(struct ipr_sglist) +
                          (sizeof(struct scatterlist) * (num_elem - 1)),
                          GFP_KERNEL);
 
@@ -2192,9 +2565,6 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
                 return NULL;
         }
 
-        memset(sglist, 0, sizeof(struct ipr_sglist) +
-               (sizeof(struct scatterlist) * (num_elem - 1)));
-
         scatterlist = sglist->scatterlist;
 
         sglist->order = order;
@@ -2289,31 +2659,24 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
 }
 
 /**
- * ipr_map_ucode_buffer - Map a microcode download buffer
+ * ipr_build_ucode_ioadl - Build a microcode download IOADL
  * @ipr_cmd:    ipr command struct
  * @sglist:             scatter/gather list
- * @len:                total length of download buffer
  *
- * Maps a microcode download scatter/gather list for DMA and
- * builds the IOADL.
+ * Builds a microcode download IOA data list (IOADL).
  *
- * Return value:
- *      0 on success / -EIO on failure
  **/
-static int ipr_map_ucode_buffer(struct ipr_cmnd *ipr_cmd,
-                                struct ipr_sglist *sglist, int len)
+static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
+                                  struct ipr_sglist *sglist)
 {
-        struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
         struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
         struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
         struct scatterlist *scatterlist = sglist->scatterlist;
         int i;
 
-        ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, scatterlist,
-                                         sglist->num_sg, DMA_TO_DEVICE);
-
+        ipr_cmd->dma_use_sg = sglist->num_dma_sg;
         ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
-        ioarcb->write_data_transfer_length = cpu_to_be32(len);
+        ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
         ioarcb->write_ioadl_len =
                 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
 
@@ -2324,15 +2687,52 @@ static int ipr_map_ucode_buffer(struct ipr_cmnd *ipr_cmd,
                         cpu_to_be32(sg_dma_address(&scatterlist[i]));
         }
 
-        if (likely(ipr_cmd->dma_use_sg)) {
-                ioadl[i-1].flags_and_data_len |=
-                        cpu_to_be32(IPR_IOADL_FLAGS_LAST);
+        ioadl[i-1].flags_and_data_len |=
+                cpu_to_be32(IPR_IOADL_FLAGS_LAST);
+}
+
+/**
+ * ipr_update_ioa_ucode - Update IOA's microcode
+ * @ioa_cfg:    ioa config struct
+ * @sglist:             scatter/gather list
+ *
+ * Initiate an adapter reset to update the IOA's microcode
+ *
+ * Return value:
+ *      0 on success / -EIO on failure
+ **/
+static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
+                                struct ipr_sglist *sglist)
+{
+        unsigned long lock_flags;
+
+        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+        if (ioa_cfg->ucode_sglist) {
+                spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+                dev_err(&ioa_cfg->pdev->dev,
+                        "Microcode download already in progress\n");
+                return -EIO;
         }
-        else {
-                dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
+
+        sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
+                                        sglist->num_sg, DMA_TO_DEVICE);
+
+        if (!sglist->num_dma_sg) {
+                spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+                dev_err(&ioa_cfg->pdev->dev,
+                        "Failed to map microcode download buffer!\n");
                 return -EIO;
         }
 
+        ioa_cfg->ucode_sglist = sglist;
+        ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+        wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+        ioa_cfg->ucode_sglist = NULL;
+        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
         return 0;
 }
 
@@ -2355,7 +2755,6 @@ static ssize_t ipr_store_update_fw(struct class_device *class_dev,
         struct ipr_ucode_image_header *image_hdr;
         const struct firmware *fw_entry;
         struct ipr_sglist *sglist;
-        unsigned long lock_flags;
         char fname[100];
         char *src;
         int len, result, dnld_size;
@@ -2396,35 +2795,17 @@ static ssize_t ipr_store_update_fw(struct class_device *class_dev,
         if (result) {
                 dev_err(&ioa_cfg->pdev->dev,
                         "Microcode buffer copy to DMA buffer failed\n");
-                ipr_free_ucode_buffer(sglist);
-                release_firmware(fw_entry);
-                return result;
-        }
-
-        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-
-        if (ioa_cfg->ucode_sglist) {
-                spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-                dev_err(&ioa_cfg->pdev->dev,
-                        "Microcode download already in progress\n");
-                ipr_free_ucode_buffer(sglist);
-                release_firmware(fw_entry);
-                return -EIO;
+                goto out;
         }
 
-        ioa_cfg->ucode_sglist = sglist;
-        ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
-        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-        wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
-
-        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-        ioa_cfg->ucode_sglist = NULL;
-        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+        result = ipr_update_ioa_ucode(ioa_cfg, sglist);
 
+        if (!result)
+                result = count;
+out:
         ipr_free_ucode_buffer(sglist);
         release_firmware(fw_entry);
-
-        return count;
+        return result;
 }
 
 static struct class_device_attribute ipr_update_fw_attr = {
@@ -2439,8 +2820,10 @@ static struct class_device_attribute *ipr_ioa_attrs[] = {
         &ipr_fw_version_attr,
         &ipr_log_level_attr,
         &ipr_diagnostics_attr,
+        &ipr_ioa_state_attr,
         &ipr_ioa_reset_attr,
         &ipr_update_fw_attr,
+        &ipr_ioa_cache_attr,
         NULL,
 };
 
@@ -2548,14 +2931,13 @@ static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
         unsigned long lock_flags = 0;
 
         ENTER;
-        dump = kmalloc(sizeof(struct ipr_dump), GFP_KERNEL);
+        dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
 
         if (!dump) {
                 ipr_err("Dump memory allocation failed\n");
                 return -ENOMEM;
         }
 
-        memset(dump, 0, sizeof(struct ipr_dump));
         kref_init(&dump->kref);
         dump->ioa_cfg = ioa_cfg;
 
@@ -2824,8 +3206,10 @@ static int ipr_slave_configure(struct scsi_device *sdev)
         if (res) {
                 if (ipr_is_af_dasd_device(res))
                         sdev->type = TYPE_RAID;
-                if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res))
+                if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
                         sdev->scsi_level = 4;
+                        sdev->no_uld_attach = 1;
+                }
                 if (ipr_is_vset_device(res)) {
                         sdev->timeout = IPR_VSET_RW_TIMEOUT;
                         blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
@@ -2848,13 +3232,14 @@ static int ipr_slave_configure(struct scsi_device *sdev)
  * handling new commands.
  *
  * Return value:
- *      0 on success
+ *      0 on success / -ENXIO if device does not exist
  **/
 static int ipr_slave_alloc(struct scsi_device *sdev)
 {
         struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
         struct ipr_resource_entry *res;
         unsigned long lock_flags;
+        int rc = -ENXIO;
 
         sdev->hostdata = NULL;
 
@@ -2868,14 +3253,16 @@ static int ipr_slave_alloc(struct scsi_device *sdev)
                         res->add_to_ml = 0;
                         res->in_erp = 0;
                         sdev->hostdata = res;
-                        res->needs_sync_complete = 1;
+                        if (!ipr_is_naca_model(res))
+                                res->needs_sync_complete = 1;
+                        rc = 0;
                         break;
                 }
         }
 
         spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 
-        return 0;
+        return rc;
 }
 
 /**
@@ -2939,7 +3326,7 @@ static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
         ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
         res = scsi_cmd->device->hostdata;
 
-        if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res)))
+        if (!res)
                 return FAILED;
 
         /*
@@ -3131,7 +3518,8 @@ static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
         }
 
         list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
-        res->needs_sync_complete = 1;
+        if (!ipr_is_naca_model(res))
+                res->needs_sync_complete = 1;
 
         LEAVE;
         return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
@@ -3435,7 +3823,8 @@ static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
         }
 
         if (res) {
-                res->needs_sync_complete = 1;
+                if (!ipr_is_naca_model(res))
+                        res->needs_sync_complete = 1;
                 res->in_erp = 0;
         }
         ipr_unmap_sglist(ioa_cfg, ipr_cmd);
@@ -3705,6 +4094,30 @@ static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
 }
 
 /**
+ * ipr_get_autosense - Copy autosense data to sense buffer
+ * @ipr_cmd:    ipr command struct
+ *
+ * This function copies the autosense buffer to the buffer
+ * in the scsi_cmd, if there is autosense available.
+ *
+ * Return value:
+ *      1 if autosense was available / 0 if not
+ **/
+static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
+{
+        struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+
+        if ((be32_to_cpu(ioasa->ioasc_specific) &
+             (IPR_ADDITIONAL_STATUS_FMT | IPR_AUTOSENSE_VALID)) == 0)
+                return 0;
+
+        memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
+               min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
+                   SCSI_SENSE_BUFFERSIZE));
+        return 1;
+}
+
+/**
  * ipr_erp_start - Process an error response for a SCSI op
  * @ioa_cfg:    ioa config struct
  * @ipr_cmd:    ipr command struct
@@ -3734,14 +4147,19 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
 
         switch (ioasc & IPR_IOASC_IOASC_MASK) {
         case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
-                scsi_cmd->result |= (DID_IMM_RETRY << 16);
+                if (ipr_is_naca_model(res))
+                        scsi_cmd->result |= (DID_ABORT << 16);
+                else
+                        scsi_cmd->result |= (DID_IMM_RETRY << 16);
                 break;
         case IPR_IOASC_IR_RESOURCE_HANDLE:
+        case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
                 scsi_cmd->result |= (DID_NO_CONNECT << 16);
                 break;
         case IPR_IOASC_HW_SEL_TIMEOUT:
                 scsi_cmd->result |= (DID_NO_CONNECT << 16);
-                res->needs_sync_complete = 1;
+                if (!ipr_is_naca_model(res))
+                        res->needs_sync_complete = 1;
                 break;
         case IPR_IOASC_SYNC_REQUIRED:
                 if (!res->in_erp)
@@ -3749,6 +4167,7 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
                 scsi_cmd->result |= (DID_IMM_RETRY << 16);
                 break;
         case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
+        case IPR_IOASA_IR_DUAL_IOA_DISABLED:
                 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
                 break;
         case IPR_IOASC_BUS_WAS_RESET:
@@ -3760,21 +4179,27 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
                 if (!res->resetting_device)
                         scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
                 scsi_cmd->result |= (DID_ERROR << 16);
-                res->needs_sync_complete = 1;
+                if (!ipr_is_naca_model(res))
+                        res->needs_sync_complete = 1;
                 break;
         case IPR_IOASC_HW_DEV_BUS_STATUS:
                 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
                 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
-                        ipr_erp_cancel_all(ipr_cmd);
-                        return;
+                        if (!ipr_get_autosense(ipr_cmd)) {
+                                if (!ipr_is_naca_model(res)) {
+                                        ipr_erp_cancel_all(ipr_cmd);
+                                        return;
+                                }
+                        }
                 }
-                res->needs_sync_complete = 1;
+                if (!ipr_is_naca_model(res))
+                        res->needs_sync_complete = 1;
                 break;
         case IPR_IOASC_NR_INIT_CMD_REQUIRED:
                 break;
         default:
                 scsi_cmd->result |= (DID_ERROR << 16);
-                if (!ipr_is_vset_device(res))
+                if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
                         res->needs_sync_complete = 1;
                 break;
         }
@@ -4073,6 +4498,7 @@ static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
         ioa_cfg->in_reset_reload = 0;
         ioa_cfg->allow_cmds = 1;
         ioa_cfg->reset_cmd = NULL;
+        ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
 
         list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
                 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
@@ -4146,7 +4572,7 @@ static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
         ipr_cmd->job_step = ipr_ioa_reset_done;
 
         list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
-                if (!ipr_is_af_dasd_device(res))
+                if (!IPR_IS_DASD_DEVICE(res->cfgte.std_inq_data))
                         continue;
 
                 ipr_cmd->u.res = res;
@@ -4179,6 +4605,36 @@ static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
 }
 
 /**
+ * ipr_setup_write_cache - Disable write cache if needed
+ * @ipr_cmd:    ipr command struct
+ *
+ * This function sets up adapters write cache to desired setting
+ *
+ * Return value:
+ *      IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
+{
+        struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+        ipr_cmd->job_step = ipr_set_supported_devs;
+        ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
+                                    struct ipr_resource_entry, queue);
+
+        if (ioa_cfg->cache_state != CACHE_DISABLED)
+                return IPR_RC_JOB_CONTINUE;
+
+        ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+        ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
+        ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
+        ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
+
+        ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
+
+        return IPR_RC_JOB_RETURN;
+}
+
+/**
  * ipr_get_mode_page - Locate specified mode page
  * @mode_pages: mode page buffer
  * @page_code:  page code to find
@@ -4389,10 +4845,7 @@ static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
                               ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
                               length);
 
-        ipr_cmd->job_step = ipr_set_supported_devs;
-        ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
-                                    struct ipr_resource_entry, queue);
-
+        ipr_cmd->job_step = ipr_setup_write_cache;
         ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
 
         LEAVE;
@@ -4431,6 +4884,51 @@ static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
 }
 
 /**
+ * ipr_reset_cmd_failed - Handle failure of IOA reset command
+ * @ipr_cmd:    ipr command struct
+ *
+ * This function handles the failure of an IOA bringup command.
+ *
+ * Return value:
+ *      IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
+{
+        struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+        dev_err(&ioa_cfg->pdev->dev,
+                "0x%02X failed with IOASC: 0x%08X\n",
+                ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
+
+        ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+        list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+        return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
+ * @ipr_cmd:    ipr command struct
+ *
+ * This function handles the failure of a Mode Sense to the IOAFP.
+ * Some adapters do not handle all mode pages.
+ *
+ * Return value:
+ *      IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
+{
+        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+        if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
+                ipr_cmd->job_step = ipr_setup_write_cache;
+                return IPR_RC_JOB_CONTINUE;
+        }
+
+        return ipr_reset_cmd_failed(ipr_cmd);
+}
+
+/**
  * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
  * @ipr_cmd:    ipr command struct
  *
@@ -4451,6 +4949,7 @@ static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
                              sizeof(struct ipr_mode_pages));
 
         ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
+        ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
 
         ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
 
@@ -4612,6 +5111,27 @@ static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
 }
 
 /**
+ * ipr_inquiry_page_supported - Is the given inquiry page supported
+ * @page0:              inquiry page 0 buffer
+ * @page:               page code.
+ *
+ * This function determines if the specified inquiry page is supported.
+ *
+ * Return value:
+ *      1 if page is supported / 0 if not
+ **/
+static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
+{
+        int i;
+
+        for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
+                if (page0->page[i] == page)
+                        return 1;
+
+        return 0;
+}
+
+/**
  * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
  * @ipr_cmd:    ipr command struct
  *
@@ -4624,6 +5144,36 @@ static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+        struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
+
+        ENTER;
+
+        if (!ipr_inquiry_page_supported(page0, 1))
+                ioa_cfg->cache_state = CACHE_NONE;
+
+        ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
+
+        ipr_ioafp_inquiry(ipr_cmd, 1, 3,
+                          ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
+                          sizeof(struct ipr_inquiry_page3));
+
+        LEAVE;
+        return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
+ * @ipr_cmd:    ipr command struct
+ *
+ * This function sends a Page 0 inquiry to the adapter
+ * to retrieve supported inquiry pages.
+ *
+ * Return value:
+ *      IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
+{
+        struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
         char type[5];
 
         ENTER;
@@ -4633,11 +5183,11 @@ static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
         type[4] = '\0';
         ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
 
-        ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
+        ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
 
-        ipr_ioafp_inquiry(ipr_cmd, 1, 3,
-                          ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
-                          sizeof(struct ipr_inquiry_page3));
+        ipr_ioafp_inquiry(ipr_cmd, 1, 0,
+                          ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
+                          sizeof(struct ipr_inquiry_page0));
 
         LEAVE;
         return IPR_RC_JOB_RETURN;
@@ -4657,7 +5207,7 @@ static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
         ENTER;
-        ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
+        ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
 
         ipr_ioafp_inquiry(ipr_cmd, 0, 0,
                           ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
@@ -4815,7 +5365,7 @@ static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
         }
 
         /* Enable destructive diagnostics on IOA */
-        writel(IPR_DOORBELL, ioa_cfg->regs.set_uproc_interrupt_reg);
+        writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
 
         writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
         int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
@@ -5147,12 +5697,7 @@ static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
         ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
         ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
 
-        if (ipr_map_ucode_buffer(ipr_cmd, sglist, sglist->buffer_len)) {
-                dev_err(&ioa_cfg->pdev->dev,
-                        "Failed to map microcode download buffer\n");
-                return IPR_RC_JOB_CONTINUE;
-        }
-
+        ipr_build_ucode_ioadl(ipr_cmd, sglist);
         ipr_cmd->job_step = ipr_reset_ucode_download_done;
 
         ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
@@ -5217,7 +5762,6 @@ static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
 {
         u32 rc, ioasc;
-        unsigned long scratch = ipr_cmd->u.scratch;
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
         do {
@@ -5233,17 +5777,13 @@ static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
                 }
 
                 if (IPR_IOASC_SENSE_KEY(ioasc)) {
-                        dev_err(&ioa_cfg->pdev->dev,
-                                "0x%02X failed with IOASC: 0x%08X\n",
-                                ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
-
-                        ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
-                        list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
-                        return;
+                        rc = ipr_cmd->job_step_failed(ipr_cmd);
+                        if (rc == IPR_RC_JOB_RETURN)
+                                return;
                 }
 
                 ipr_reinit_ipr_cmnd(ipr_cmd);
-                ipr_cmd->u.scratch = scratch;
+                ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
                 rc = ipr_cmd->job_step(ipr_cmd);
         } while(rc == IPR_RC_JOB_CONTINUE);
 }
@@ -5517,15 +6057,12 @@ static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
         int i, rc = -ENOMEM;
 
         ENTER;
-        ioa_cfg->res_entries = kmalloc(sizeof(struct ipr_resource_entry) *
+        ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
                                        IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
 
         if (!ioa_cfg->res_entries)
                 goto out;
 
-        memset(ioa_cfg->res_entries, 0,
-               sizeof(struct ipr_resource_entry) * IPR_MAX_PHYSICAL_DEVS);
-
         for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
                 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
 
@@ -5566,15 +6103,12 @@ static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
                 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
         }
 
-        ioa_cfg->trace = kmalloc(sizeof(struct ipr_trace_entry) *
+        ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
                                  IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
 
         if (!ioa_cfg->trace)
                 goto out_free_hostrcb_dma;
 
-        memset(ioa_cfg->trace, 0,
-               sizeof(struct ipr_trace_entry) * IPR_NUM_TRACE_ENTRIES);
-
         rc = 0;
 out:
         LEAVE;
@@ -5642,6 +6176,9 @@ static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
         ioa_cfg->host = host;
         ioa_cfg->pdev = pdev;
         ioa_cfg->log_level = ipr_log_level;
+        ioa_cfg->doorbell = IPR_DOORBELL;
+        if (!ipr_auto_create)
+                ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
         sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
         sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
         sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
@@ -5660,6 +6197,10 @@ static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
         INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread, ioa_cfg);
         init_waitqueue_head(&ioa_cfg->reset_wait_q);
         ioa_cfg->sdt_state = INACTIVE;
+        if (ipr_enable_cache)
+                ioa_cfg->cache_state = CACHE_ENABLED;
+        else
+                ioa_cfg->cache_state = CACHE_DISABLED;
 
         ipr_initialize_bus_attr(ioa_cfg);
 
@@ -6008,6 +6549,7 @@ static int __devinit ipr_probe(struct pci_dev *pdev,
         ipr_scan_vsets(ioa_cfg);
         scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
         ioa_cfg->allow_ml_add_del = 1;
+        ioa_cfg->host->max_channel = IPR_VSET_BUS;
         schedule_work(&ioa_cfg->work_q);
         return 0;
 }
@@ -6055,12 +6597,30 @@ static struct pci_device_id ipr_pci_table[] __devinitdata = {
         { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
                 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A,
               0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+        { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
+                PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B,
+                0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+        { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
+              PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A,
+              0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+        { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
+              PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B,
+              0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+        { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
+              PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A,
+              0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+        { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
+              PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B,
+              0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
         { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
                 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780,
                 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
         { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
                 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E,
                 0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
+        { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
+                PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F,
+                0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
         { }
 };
 MODULE_DEVICE_TABLE(pci, ipr_pci_table);